Introduce your child to the inclined plane, one of the six simple machines that helps to make work easier for us!

Did you know that the screw is actually one of the six simple machines? This handy machine helps to make work easier!

Ever wonder about how to make the perfect paper airplane? Learn about the four forces that affect flight with paper airplane physics!

Young inventors will have a blast with this worksheet on compound machines! Use three of the six machines together to make work easier.

Create your own gravity-powered roller coaster in this creative worksheet!

Use your detective skills to predict the motion of a seesaw in this third-grade worksheet!

Put your prediction proficiency to the test in this third-grade physical science worksheet!